math coprocessor
  • An arithmetic-logic unit designed to perform floating-point operations. A CPU may have such a processor incorporated, or a second chip may be utilized. Math coprocessors are especially useful when a computer performs sophisticated calculations, such as those frequently needed in CAD, spreadsheet, and scientific programs. Also spelled math co-processor. Also called floating-point processor, floating-point coprocessor, floating-point unit, or numeric processor.

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